DE19751282A1 - Tele-Varioobjektiv - Google Patents

Tele-Varioobjektiv

Info

Publication number
DE19751282A1
DE19751282A1 DE19751282A DE19751282A DE19751282A1 DE 19751282 A1 DE19751282 A1 DE 19751282A1 DE 19751282 A DE19751282 A DE 19751282A DE 19751282 A DE19751282 A DE 19751282A DE 19751282 A1 DE19751282 A1 DE 19751282A1
Authority
DE
Germany
Prior art keywords
focal length
lens
lens group
setting
zoom lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19751282A
Other languages
German (de)
English (en)
Inventor
Hiroyasu Ozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of DE19751282A1 publication Critical patent/DE19751282A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1441—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive
    • G02B15/144113—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive arranged +-++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE19751282A 1996-11-19 1997-11-19 Tele-Varioobjektiv Withdrawn DE19751282A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8308513A JPH10148758A (ja) 1996-11-19 1996-11-19 望遠ズームレンズ

Publications (1)

Publication Number Publication Date
DE19751282A1 true DE19751282A1 (de) 1998-05-20

Family

ID=17981937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19751282A Withdrawn DE19751282A1 (de) 1996-11-19 1997-11-19 Tele-Varioobjektiv

Country Status (3)

Country Link
US (1) US6052235A (ja)
JP (1) JPH10148758A (ja)
DE (1) DE19751282A1 (ja)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003315676A (ja) * 2002-04-19 2003-11-06 Pentax Corp ズームレンズ系
US6778331B2 (en) 2002-05-10 2004-08-17 Pentax Corporation Zoom lens system
JP4053361B2 (ja) * 2002-07-04 2008-02-27 ペンタックス株式会社 ズームレンズ系
JP2005266183A (ja) * 2004-03-18 2005-09-29 Sigma Corp 望遠ズームレンズ
JP4586961B2 (ja) * 2004-03-30 2010-11-24 株式会社ニコン 防振機能を有するズームレンズ
JP4679097B2 (ja) * 2004-08-25 2011-04-27 Ｈｏｙａ株式会社 望遠レンズ系
JP4687194B2 (ja) * 2005-03-30 2011-05-25 株式会社ニコン ズームレンズ
JP4905653B2 (ja) * 2006-03-28 2012-03-28 ペンタックスリコーイメージング株式会社 中望遠レンズ系
JP4994796B2 (ja) * 2006-11-14 2012-08-08 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP5013599B2 (ja) * 2007-03-15 2012-08-29 オリンパスイメージング株式会社 ズームレンズおよびそれを用いた電子撮像装置
JP2009098449A (ja) * 2007-10-17 2009-05-07 Olympus Imaging Corp ズームレンズ及びそれを備えた撮像装置
JP2009098458A (ja) * 2007-10-17 2009-05-07 Olympus Imaging Corp ズームレンズおよびそれを用いた撮像装置
JP5058760B2 (ja) * 2007-11-29 2012-10-24 オリンパスイメージング株式会社 ズームレンズ及びそれを備えた撮像装置
JP5410797B2 (ja) * 2009-03-19 2014-02-05 株式会社シグマ 防振機能を有するズームレンズ
JP5532386B2 (ja) * 2009-07-06 2014-06-25 株式会社リコー ズームレンズおよび情報装置
JP5691780B2 (ja) * 2011-04-15 2015-04-01 株式会社リコー ズームレンズ、カメラおよび携帯情報端末装置
JP5611124B2 (ja) * 2011-05-31 2014-10-22 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP5840685B2 (ja) * 2011-06-22 2016-01-06 富士フイルム株式会社 ズームレンズおよび撮像装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662724A (en) * 1984-05-22 1987-05-05 Nippon Kogaku K. K. Telephoto zoom lens
JP2691563B2 (ja) * 1988-06-08 1997-12-17 旭光学工業株式会社 望遠ズームレンズ
JP3328001B2 (ja) * 1993-06-15 2002-09-24 オリンパス光学工業株式会社 ズームレンズ

Also Published As

Publication number Publication date
JPH10148758A (ja) 1998-06-02
US6052235A (en) 2000-04-18

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: PENTAX CORP., TOKIO/TOKYO, JP

8130 Withdrawal